Rolex Datejust 31 Yellow Gold — White Roman Dial with Diamond Bezel | Ref. 278288RBR

Reference 278288RBR is the jewellery-forward expression of the Datejust 31, rendered in 18ct yellow gold with a factory diamond-set bezel and a white dial featuring Roman numeral hour markers. At 31mm, this case size has long been the traditional choice for a refined dress watch worn across all occasions, and the combination of yellow gold with brilliant-cut diamonds and Roman numerals positions this reference at the apex of feminine horological luxury.

Calibre 2236 powers this timepiece — Rolex's dedicated manufacture movement for the smaller Datejust and Lady-Datejust references. Introduced in 2015, the 2236 incorporates a Syloxi silicon hairspring for superior resistance to magnetic fields and temperature variation, offering a 55-hour power reserve. The dial's crisp white lacquer is framed by the graduated brilliance of the diamond bezel, while the Roman chapter ring adds classical legibility and decorative depth that suits the yellow gold aesthetic perfectly.

For collectors and buyers seeking a watch that bridges fine jewellery and haute horlogerie, the 278288RBR is a compelling statement piece. Factory diamond bezels from Rolex carry a premium on both primary and secondary markets, as their consistent setting standards and brand authenticity are unimpeachable. This reference performs strongly as both a wearable luxury object and a store of value, especially in full yellow gold with papers confirming factory gem provenance.